Whiffletree.



UNITED sTATEs PATENT oEEioE.

, HENRY SELLON, OFBRIDGER, WYOMING.

WHIFFLETBEE.

To all whom, it may concern:

Be it known that I, HENRY SELLoN, a citizen of the United States,residing at Bridger, in the county of Uinta and State of Wyoming,

have invented a new and useful Whiffletree,

of which the following is a specification,

This invention relates to improvements in whiflietrees, and has for itsobject the provision of an improved form of doubletree, withswingletrees attached to the upper side thereof, that will not raise atthe rear edge nor show a tendency to turn over when the draft isapplied; and a further object of the invention is to provide a device ofthis nature that will be simple in construction and eX- tremely durableand in which the parts subject to wear may be easily replaced.

ln the accompanying drawing z-Figure 1 is a plan view of the improvedwhiffletree; Fig. 2 is a perspective of detached parts; Fig. 3 is atransverse vertical section on line 3- 3 of Fig. 1; and Fig. 4 is atransverse vertical section on line 4-4 of Fig. 1. f

Referring to the drawing, the doubletree 1 is mounted transversely uponthe upper side of the fulcrum block 2 and is rigidly secured thereto bya riveted halved together joint. The forward end of the block isprovided with an upwardly-extending stud Aor fulcrum 3 which is inclinedslightly rearward. The sides of the fulcrum block converge forward andthe ends of the block extend beyond the sides of the doubletree and arerounded in outline about the fulcrum as a center of curvature. Thefulcrum block is supported upon the tongue in the housing 4 which eX-tends longitudinally over the fulcrum block and is recessed to receivethe same and is provided with an opening 5 in which the fulcrum finds abearing, and forwardly-converging sides to correspond with the sides ofthe fulcrum block; the ends of the housing are securely bolted to thetongue.

The swingletrees 6, preferably made of metal and with trace hooks eitherintegral therewith or detachable, are pivotally supported in the yokes 8by means of the bolts 9 which are keyed to the swingletrees and passthrough transversely elongated holes 10 in the doubletree. The yokes arerigidly secured to the rear edge of the doubletree which sustains thedraft from the traces, the elongation of the holes 10 preventing any ofthe draft being applied to the doubletree directly through the pivotbolts 9.

Specification of Letters Patent. Application filed February l, 1907.Serial No. 355,312. i

Patented June 18, 1907.

Having thus fully described the invention, what is claimed and desiredto be secured by Letters Patent is 1. In combination, a tongue, arecessed housing secured thereto and provided with a pivot opening, afulcrum block having a fulcrum stud adapted to iit in said opening andprovided with a recessed face, a double tree also recessed, the recessedportion of the double tree and block interfitting, and means forsecuring the block and double tree to gether.

2. In combination, a tongue, a recessed housing rigidly secured thereto,there being a pivot opening at one end of the recess, and the oppositewall of the recess being curved on an are struck from the center of suchpivot opening, a recessed fulcrum block disposed within the recess ofthe housing, and carrying a fulcrum [stud fitting within said opening,one end of said block fitting against the curved wall of the housingrecess, and the sides of the block converging toward the fulcrum stud, adouble tree having a recess, the walls of which converge to conform tothe convergent sides of the block, and means for securing the doubletree and block to each other.

3. A coupling for whiffletrees comprising a member recessed to receive apart to be coupled and having converging sides and rounded ends, afulcrum projecting from one of the ends thereof, 'and a second parthaving converging sides corresponding to the sides of said first member.I

4. In a whiflietree, the combination of a double tree, a swingle treemounted thereon, a yoke fitting around the rear edgesof both trees, theforward ends of the yoke having bolt receiving openings, a boltextending through said openings and a corresponding opening in theswingle tree, the double tree being provided with a transverselyelongated aperture for the passage of said bolt, and means for securingthe lower rear portion of the yoke to the double tree.

In testimony that l claim the foregoing as my own, I have hereto affixedmy signature in the presence of two witnesses.

HENRY SELLON.

Witnesses:

FRED MoCULLooH, CHAs. E. MoCULLooH.

IOC

